Help me solve this mystery lol

Kay

Ok help me solve this mystery lol my sister sent me this pregnancy test. Clearly positive right? HOWEVER. She said she got her “period” 2 weeks ago. She just started bleeding (red, a pad a day with some cramping) so she took this test. She thinks she could be miscarrying since she’s bleeding but how would she be pregnant if she got her period 2 weeks ago (normal period except it was 3 days late) and she hasn’t had sex in the last 2 weeks? I’m so confused!